Passengers who were on an Alitalia flight to Malta last month are being asked to contact the Disease Surveillance Unit, or the Public Health doctor through St Luke’s Hospital.

The unit did not say why such contact was required.

It said the flight in question was AZ884, which departed from Milan to Malta on 9 April.

People who were on this flight are asked to contact the Disease Surveillance Unit on 2133-2235 or 2132-4086 during office hours, or the Public Health doctor on call, through St Luke’s Hospital, on 2124-1251, out of office hours.